Billable Code

Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.

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ICD-10 from 2011 - 2016

E05.40 is a billable ICD code used to specify a diagnosis of thyrotoxicosis factitia without thyrotoxic crisis or storm. A 'billable code' is detailed enough to be used to specify a medical diagnosis.

The ICD code E054 is used to code Thyrotoxicosis factitia

Thyrotoxicosis factitia refers to a condition of thyrotoxicosis caused by the ingestion of exogenous thyroid hormone. It can be the result of mistaken ingestion of excess drug, such as levothyroxine, or as a symptom of Munchausen syndrome. It is an uncommon form of hyperthyroidism.

Equivalent ICD-9 Code
GENERAL EQUIVALENCE MAPPINGS (GEM)

Thyrotoxicosis of other specified origin without mention of thyrotoxic crisis or storm
(approximate match)

This is the official approximate match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk.
This means that while there is no exact mapping between this ICD10 code E05.40 and a single ICD9 code, 242.80 is an approximate match for comparison and conversion purposes.